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Contenuto archiviato il 2019-03-12

ECONOMIC EVALUATION OF THE ACID PRECIPITATION ON FOREST ECOSYSTEMS

Obiettivo

DEVELOPMENT OF A METHOD FOR THE MICRO-AND MACRO-ECONOMIC EVALUATION OF THE DAMAGE FROM WHICH THE FORESTS ARE SUFFERING AS A RESULT OF ACID EMISSIONS.. KNOWLEDGE OF THE MAGNITUDE OF THE ECONOMIC LOSSES AS WELL AS OF THE FORESTS' SOCIAL FUNCTION IS THE PREREQUISITE FOR ADEQUATE MEASURES OF PROTECTION.

THE BASIS OF THE RESEARCH WILL BE THE CHANGES IN FOREST CONDITIONS CAUSED BY ACID EMISSIONS. IN ORDER TO OBTAIN THE NECESSARY DATA, AGREEMENTS ON EXCHANGE OF INFORMATION HAVE BEEN MADE WITH RESEARCH INSTITUTIONS AND FOREST ADMINISTRATIONS; A QUESTIONNAIRE HAS BEEN COMPILED LISTING THE MOST IMPORTANT CLASSES OF DAMAGE, AND REQUESTING INFORMATION ON THE INFLUENCE ON USE AND PRODUCTION IN 1983, AND ALSO AN ESTIMATE OF THE LOCAL RISK TO THE FOREST, TOGETHER WITH THE INTENDED ADAPTIVE MEASURES. THE INQUIRY WILL BE DIRECTED AT ABOUT 80 LARGE NORTH GERMAN PRIVATE FOREST ENTERPRISES, STATE FOREST DISTRICTS IN THE HARZ, BAVARIAN FOREST, BLACK FOREST AND SAUERLAND,ALONG WITH SEVERAL LARGE PRIVATE FOREST ENTERPRISES IN SOUTH GERMANY.

THE ANALYSIS OF THE DAMAGED WOOD OCCURRENCE IN THE FOREST DISTRICTS OF THE HARZ, A PROLONGED SERIES ANALYSIS OF DAMAGED WOOD OCCURRENCE IN A PRIVATE FOREST ENTERPRISE IN SAUERLAND AND AN ANALYSIS OF THE DAMAGE TO FOREST MARGINS AND CONSEQUENT DAMAGE IN A NORTH GERMAN PRIVATE FOREST ARE BEING DONE IN THE FORM OF INDIVIDUAL STUDIES.

A BUSINESS MODEL TO SIMULATE THE RESULTS OF DAMAGING INFLUENCES ON THE COSTS AND, RETURNS SITUATION IS TO BE DEVELOPED WITH THE RESULTS OF THESE INSTITUTE'S STUDIES COMBINED WITH OTHER INFORMATION.

THE TOTAL ECONOMIC EVALUATION MUST DIFFERENTIATE BETWEEN THE FOREST PRODUCTS THAT ARE MARKETED, AND THOSE FOR WHICH NO MARKET EXISTS. IN THE FIRST CASE, AN ATTEMPT WILL BE MADE TO ANSWER THE QUESTION AS TO HOW THE DEMAND AND THE PRODUCT VALUE CHANGE WHEN THE WOOD PRODUCTION VARIES, WITH THE HELP OF INPUT-OUTPUT-ANALYSIS SIMULATION MODELS. AN ANSWER CANNOT BE FOUND WITHOUT FURTHER METHODICAL RESEARCH, WHICH IS MADE DIFFICULT BECAUSE OF THE LACK OF BASIC STATISTICAL MATERIAL. HOWEVER, FROM EXISTING INPUT-OUTPUT TABLES IT IS EVIDENT THAT THROUGH THE PROCESSING OF THE RAW MATERIAL WOOD, ITS VALUE IS INCREASED MANY TIMES.

IN THE AREA OF NON-MARKETED FOREST PRODUCTS (RECREATION, WATERSHED AND SOIL PROTECTION) THERE IS STILL A GREAT LACK OF INFORMATION.

THE METHODS WHICH CAN POSSIBLY BE USED TO EVALUATE THE REDUCTION OF THE RECREATION FUNCTION HAVE BEEN CHECKED TO DATE.
THE USER-TIME-METHOD SEEMS TO BE ESPECIALLY SUITABLE.

MORE INFORMATION FOR THE OTHER AREAS IS BEING GATHERED AT THE PRESENT TIME.. EMPIRICAL STUDIES IN DAMAGED AREAS ARE NECESSARY.

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Coordinatore

GEORG-AUGUST-UNIVERSITÄT GÖTTINGEN
Contributo UE
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Indirizzo
BÜSGENWEG 5
37073 GÖTTINGEN
Germania

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